REDHAT-BUG-2503500: Medium severity Mozilla Firefox vulnerability

Published Jul 21, 2026
·
Updated

Information disclosure in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13.

Affected Software

3 affected components
Mozilla Firefox<=152
Mozilla Firefox ESR<=115.37
Mozilla Firefox ESR<=140.12

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Firefox / Firefox ESR (Graphics: ImageLib) to a version that resolves this vulnerability.

    Fixed in 153
  2. Upgrade

    Upgrade Firefox ESR (Graphics: ImageLib) to a version that resolves this vulnerability.

    Fixed in 115.38
  3. Upgrade

    Upgrade Firefox ESR (Graphics: ImageLib) to a version that resolves this vulnerability.

    Fixed in 140.13

Event History

Jul 21, 2026
Data Sourced
via Red Hat·01:04 PM
DescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is the severity of REDHAT-BUG-2503500?

The severity of REDHAT-BUG-2503500 is categorized as medium (4).

2

How do I fix REDHAT-BUG-2503500?

To fix REDHAT-BUG-2503500, update to Firefox version 153, Firefox ESR 115.38, or Firefox ESR 140.13.

3

What type of vulnerability is REDHAT-BUG-2503500?

REDHAT-BUG-2503500 is an information disclosure vulnerability in the Graphics: ImageLib component.

4

Which software is affected by REDHAT-BUG-2503500?

REDHAT-BUG-2503500 affects Mozilla Firefox and Mozilla Firefox ESR.

5

When was REDHAT-BUG-2503500 published?

REHAT-BUG-2503500 was published on July 21, 2026.

Contact

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